I’ve always wanted to run a deeply slice of life game for an extended period, just to see where it goes. Like, we’re working class families who share an apartment block in Dąbrowa Górnicza or Allentown in 1975. The social contract of the play group is that Nothing Much Happens, so the small challenges of life become intense foci and the overall texture of the campaign approaches some weird gaming equivalent of photorealism.
I’d probably used a radically toned down version of Archipelago. Maybe instead of the cards for addressing uncertainty there would be a single replacement card that just says “Do the least interesting thing”.